DE2912207A1 - DEVICE FOR CLEANING DENTAL PROSTHESES - Google Patents

Description

2312207

Braun Aktiengesellschaft, Rüsselsheimer Strasse

6000 Frankfurt (Main)

RT-PT / Tute / Em March 23, 1979

Device for cleaning dentures

According to patent .... (patent application P 28 53 668.7)

030041/0183

The invention relates to a device for cleaning dental prostheses with a housing, the one for receiving suitable cleaning fluid from the housing removable tank contains according to patent .... (patent application P 28 53 668.7).

In recent years they are increasingly electromechanical Baths in motion have been used for cleaning dentures and the like, in particular the Ease of use and an improvement in efficiency aimed at such devices.

A device of this type is known (GM lh ^ k 605), the housing base of which contains an electromagnet which, when the tank containing the cleaning fluid is put on, drives a stirrer stored in the tank, which rinses the inserted dental prosthesis Fluid moves. It has been shown, however, that a moving liquid bath alone is not sufficient for cleaning the dental prosthesis.

It has therefore also been proposed (US Pat. No. 3,132,657) that To move the liquid in the tank closed at the top with a lid using a stirrer so vigorously that the swirled liquid absorbs oxygen in such a way that this oxygen comes into contact with the dental prosthesis and the cleaning effect is improved.

However, the known cleaning devices have current requirements both in terms of manufacturing costs, as well as in terms of application reliability and security not met.

0300A1 / 0183

The main application therefore relates to a device for cleaning dental prostheses in which the dental prosthesis can be removed from the cleaning fluid without that the hand of the operator comes into contact with the liquid and the tank so with the device it can be connected that unauthorized persons, especially children, cannot easily get to the liquid.

The object of the present invention is now to provide the device to improve so that the cleaning liquid contained in the tank a particularly quick cleaning the denture allows.

According to the invention this is achieved in that the housing is equipped with a heating unit that brings the cleaning fluid to a level above room temperature heats up lying temperature, whereby a switch is provided on the housing, preferably a microswitch, which switches the current to the heating unit when the tank is placed on the housing.

The heating unit is preferably arranged on the housing, for example on the container platform of the device and when the tank is inserted it comes into direct contact with the latter, the switch automatically when it comes into contact with the tank used, the passage of current to the heating unit allowed.

In a preferred embodiment, the heating unit is washed around by the cleaning fluid and inside the Tanks arranged, with the power supply provided on the one hand on the tank or the tank lid and on the other hand on the housing Contacts takes place.

030041/0181

According to the invention, the heating unit is a PTC element.

The heating unit can also be designed as a heating film that is attached to the inner wall of the tank and / or to the insert is arranged.

The one connected to the circuit of the heating unit Switch is advantageously a short-time clock, which after the completion of the ReiηigungsVorganges the passage of current to Heating unit interrupts.

The invention has a wide variety of embodiments to, one of which is shown in the attached drawing, which shows the device in longitudinal section.

The device for cleaning the dentition consists essentially of the device housing 1 with the in this housed (not shown) air pump with drive unit, the container 2 for the recording the cleaning liquid 3 and a device 4 for holding and closing the container 2.

In the container 2 there is an insert 5 for receiving of the denture parts to be cleaned, in the form of a container open at the bottom, whereby the insert 5 a blowpipe 6 extends which is held by arms 7,8. A sliding film 9 rests on the arms 7, 8, which prevents the denture parts introduced into the container from above from falling through between the arms 7, 8.

The container 2 and the insert 5 are closed by a lid 10 which, on the one hand, allows the

030041/0183

. ..lh

Liquid 3 prevented from the container 2, and on the other hand ensures that the insert 5 on the circumferential edge 11 is centered in the container 2.

As the drawing shows, the container 2 with insert 5 is pushed onto the container platform 12 of the device housing 1 in arrow direction A, the device k for holding and closing the container 2 being lowered down to the blowpipe 6 in arrow direction B from above.

The device h consists of a nozzle 1.3 with a nozzle head 1 ¹ J, an annular seal 15 arranged on the nozzle head 1 k , and the locking screw 16.

If the locking screw 16 is rotated in the clockwise direction, then the connecting piece 13 moves in Pfei1richtung B to the nozzle head \ k on the ring seal 15 coupled to the blowpipe 6. The container 2 with insert 5 can no longer be moved against the direction of arrow A. If the pump is now switched on via the switch 17, the pump delivers air via the hose 18 and the hose nipple 19 to the connector 13 and then via the nozzle head 14 in direction C or D, into the interior of the container 2. The Air flows through the liquid 3 and emerges at 20 from the container 2 into the open.

The air flowing through the liquid 3 sets it in bubbling movement and causes an intensive cleaning of the in the insert 5 lying on the sieve film 9, Denture parts. -

03004U0183

After the cleaning process, the air pump is switched off and the locking screw as long as counter turned clockwise until the nozzle head 14 the The blowpipe 6 releases and the container 2 is removed in front of the Behä1terρ 1a11form 12 against the direction of arrow A can. The dentition parts can now be removed from the liquid 3 by pulling the insert 5 over the upper end of the blowpipe 6 out of the container 2 in an upward direction will.

The device housing 1 has two locking buttons 22 equipped, which are diametrically opposite each other, and which are equipped with a mechanism not shown 33/3 * » cooperate that a turning of the locking screw 16 prevented. This ensures that the Container 3 with the aggressive cleaning liquid does not can be taken from children.

After switching on the device, the compressed air generator pumps, For example, a diaphragm pump, as used in aquarium systems, feeds the air through the blowpipe the liquid, whereby the air flow exits at the lower end and then moves through the Liquid moves upwards, and there emerges from the opening in the lid. The air bubbles cause an intense Movement of the liquid in such a way that the liquid in the liquid bath 3 Dental prostheses or denture parts located are washed around, which supports the cleaning properties of the liquid will. A solution that partly consists of phosphoric acid is suitable as a liquid.

030041/0183

-> - 2312207

In the container platform 12, a heating unit 38 is embedded that when switched on via the switch 17 The device heats up the cleaning fluid 3 in the container 2 so that the cleaning fluid is activated extraordinarily and the cleaning process after just a few Minutes has ended.

In order to prevent the dental prosthesis from being damaged because it could be exposed to the heated cleaning bath for too long, there is a timer 39 in the circuit For example, an adjustable timer is switched on, which automatically enables the passage of current to the pump motor and / or the heating unit 38 after a certain time interrupts.

A liquid which essentially consists of about 30% phosphoric acid has proven to be particularly advantageous for cleaning at room temperature. However, if such a liquid is heated to around kO C, then the time for cleaning is shortened to around 20 minutes.

030041/0183

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Claims (1)

Claims? 912,207 1. Device for cleaning dentures with a housing, the one for receiving cleaning fluid suitable, removable from the housing Tank contains, according to patent .... (patent application P 28 53 668.7) f characterized by an over a on the housing (1) arranged switch (17, 39) can be put into operation heating unit (38) for heating the cleaning fluid (3). 2. Device according to claim 1, characterized in that that the heating unit (38) is arranged on the housing, preferably on the container platform (12) of the device is and comes into direct contact with the tank (2) inserted, the switch automatically at Contact with the inserted tank (2) the electrical continuity to the heating unit (38). 3. Apparatus according to claim 1, characterized in that the cleaning fluid washes around the heating unit is arranged inside the tank, with the power supply on the one hand on the tank or the tank lid and contacts provided on the housing on the other hand. k . Device according to Claims 1-3, characterized in that the heating unit (38) is a PTC element. 030041/0183 5. Apparatus according to claim 3, characterized in that that the heating unit is designed as a heating foil and on the inside wall of the tank and / or the insert (5) is arranged. 6. Device according to one or more of the preceding claims, characterized in that the in switched on the circuit as a heating unit (38) Switch is a short-time clock (39) which, after the cleaning process has finished, the passage of current to the heating unit (38) interrupts. 030041/0183